Japan team builds second skin message display

The device could replace the need for in-person checks by offering continuous, non-invasive monitoring of the sick and frail.

The band-aid-like device is just one millimetre thick and can monitor important health data as well as send and receive messages, including emojis.

Takao Someya, the University of Tokyo professor who developed the device, envisions it as a boon for medical professionals with bed-ridden or far-flung patients, as well as family living far from their relatives.